The Kowa Zoom Eyepiece TE-Z9B is a high quality zoom eyepiece. A magnification of 20x-60x can be reached and is suitable for the Kowa Spotting Scopes from the following series:
Kowa TSN-660M series
Kowa TSN-82SV
Kowa TSN-600 series
This eyepiece also fits on the following historical spotting scopes:
TSN-603604, TSN-661662663664, TSN-1234,
TS-601602, TS-611612613614 and
TSN-820820M (requires TSN-EC1A adapter ring)
Because the TE-Z9B is equipped with a Twist-up eyepiece ring with three positions, the distance between your eye and the eyepiece can be adjusted. In this way, both spectacle and non-spectacle wearers have a pleasant viewing experience.
Main features Kowa Zoom Eyepiece 20x-60x TE-Z9B:
Lens elements
The eyepiece is made of 6 lens groups with a total of 9 lens elements, which gives this eyepiece a large angle of view and a crisp image over the entire field of vision.
Twist Up eyepiece
Suitable for both spectacle and non-spectacle wearers.
Waterproof
The eyepiece is waterproof when mounted.
SPECIFICATIONS AT MAGNIFICATION WITH KOWA TE-Z9B EYEPIECE
TSN-660 serie
TSN-600 serie
TSN-82SV serie
TP-556
Magnification
20x
60x
20x
60x
21x
63x
26x
78x
Eye Relief in mm
16,5
16,0
16,5
16,0
16,5
16,0
16,5
16,0
Exit pupil in mm
3,3
1,1
3,0
1,0
3,9
1,3
3,4
1,1
Brightness
10,9
1,2
9,0
1,0
15,2
1,7
11,3
1,3
Twilight Factor
36,3
62,9
34,6
60,0
41,5
71,9
48,0
82,8
Field of view in °
1,9°
1,0°
1,9°
1,0°
1,8°
0,95°
1,45°
0,75°
Field of view 1000m in m
33,2
17,5
33,2
17,5
31,0
17,0
25,0
13,0